1 files changed, 0 insertions, 208 deletions
diff --git a/gst-libs/gst/fft/gstfftf32.c b/gst-libs/gst/fft/gstfftf32.c
deleted file mode 100644
index 4facb353..00000000
--- a/gst-libs/gst/fft/gstfftf32.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/* GStreamer
- * Copyright (C) <2007> Sebastian Dröge <slomo@circular-chaos.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include <glib.h>
-#include <math.h>
-
-#include "_kiss_fft_guts_f32.h"
-#include "kiss_fftr_f32.h"
-#include "gstfft.h"
-#include "gstfftf32.h"
-
-/**
- * SECTION:gstfftf32
- * @short_description: FFT functions for 32 bit float samples
- *
- * #GstFFTF32 provides a FFT implementation and related functions for
- * 32 bit float samples. To use this call gst_fft_f32_new() for
- * allocating a #GstFFTF32 instance with the appropiate parameters and
- * then call gst_fft_f32_fft() or gst_fft_f32_inverse_fft() to perform the
- * FFT or inverse FFT on a buffer of samples.
- *
- * After use free the #GstFFTF32 instance with gst_fft_f32_free().
- *
- * For the best performance use gst_fft_next_fast_length() to get a
- * number that is entirely a product of 2, 3 and 5 and use this as the
- * @len parameter for gst_fft_f32_new().
- *
- * The @len parameter specifies the number of samples in the time domain that
- * will be processed or generated. The number of samples in the frequency domain
- * is @len/2 + 1. To get n samples in the frequency domain use 2*n - 2 as @len.
- *
- * Before performing the FFT on time domain data it usually makes sense
- * to apply a window function to it. For this gst_fft_f32_window() can comfortably
- * be used.
- *
- * Be aware, that you can't simply run gst_fft_f32_inverse_fft() on the
- * resulting frequency data of gst_fft_f32_fft() to get the original data back.
- * The relation between them is iFFT (FFT (x)) = x * nfft where nfft is the
- * length of the FFT. This also has to be taken into account when calculation
- * the magnitude of the frequency data.
- *
- */
-
-/**
- * gst_fft_f32_new:
- * @len: Length of the FFT in the time domain
- * @inverse: %TRUE if the #GstFFTF32 instance should be used for the inverse FFT
- *
- * This returns a new #GstFFTF32 instance with the given parameters. It makes
- * sense to keep one instance for several calls for speed reasons.
- *
- * @len must be even and to get the best performance a product of
- * 2, 3 and 5. To get the next number with this characteristics use
- * gst_fft_next_fast_length().
- *
- * Returns: a new #GstFFTF32 instance.
- */
-GstFFTF32 *
-gst_fft_f32_new (gint len, gboolean inverse)
-{
-  GstFFTF32 *self;
-  gsize subsize = 0, memneeded;
-
-  g_return_val_if_fail (len > 0, NULL);
-  g_return_val_if_fail (len % 2 == 0, NULL);
-
-  kiss_fftr_f32_alloc (len, (inverse) ? 1 : 0, NULL, &subsize);
-  memneeded = ALIGN_STRUCT (sizeof (GstFFTF32)) + subsize;
-
-  self = (GstFFTF32 *) g_malloc0 (memneeded);
-
-  self->cfg = (((guint8 *) self) + ALIGN_STRUCT (sizeof (GstFFTF32)));
-  self->cfg = kiss_fftr_f32_alloc (len, (inverse) ? 1 : 0, self->cfg, &subsize);
-  g_assert (self->cfg);
-
-  self->inverse = inverse;
-  self->len = len;
-
-  return self;
-}
-
-/**
- * gst_fft_f32_fft:
- * @self: #GstFFTF32 instance for this call
- * @timedata: Buffer of the samples in the time domain
- * @freqdata: Target buffer for the samples in the frequency domain
- *
- * This performs the FFT on @timedata and puts the result in @freqdata.
- *
- * @timedata must have as many samples as specified with the @len parameter while
- * allocating the #GstFFTF32 instance with gst_fft_f32_new().
- *
- * @freqdata must be large enough to hold @len/2 + 1 #GstFFTF32Complex frequency
- * domain samples.
- *
- */
-void
-gst_fft_f32_fft (GstFFTF32 * self, const gfloat * timedata,
-    GstFFTF32Complex * freqdata)
-{
-  g_return_if_fail (self);
-  g_return_if_fail (!self->inverse);
-  g_return_if_fail (timedata);
-  g_return_if_fail (freqdata);
-
-  kiss_fftr_f32 (self->cfg, timedata, (kiss_fft_f32_cpx *) freqdata);
-}
-
-/**
- * gst_fft_f32_inverse_fft:
- * @self: #GstFFTF32 instance for this call
- * @freqdata: Buffer of the samples in the frequency domain
- * @timedata: Target buffer for the samples in the time domain
- *
- * This performs the inverse FFT on @freqdata and puts the result in @timedata.
- *
- * @freqdata must have @len/2 + 1 samples, where @len is the parameter specified
- * while allocating the #GstFFTF32 instance with gst_fft_f32_new().
- *
- * @timedata must be large enough to hold @len time domain samples.
- *
- */
-void
-gst_fft_f32_inverse_fft (GstFFTF32 * self, const GstFFTF32Complex * freqdata,
-    gfloat * timedata)
-{
-  g_return_if_fail (self);
-  g_return_if_fail (self->inverse);
-  g_return_if_fail (timedata);
-  g_return_if_fail (freqdata);
-
-  kiss_fftri_f32 (self->cfg, (kiss_fft_f32_cpx *) freqdata, timedata);
-}
-
-/**
- * gst_fft_f32_free:
- * @self: #GstFFTF32 instance for this call
- *
- * This frees the memory allocated for @self.
- *
- */
-void
-gst_fft_f32_free (GstFFTF32 * self)
-{
-  g_free (self);
-}
-
-/**
- * gst_fft_f32_window:
- * @self: #GstFFTF32 instance for this call
- * @timedata: Time domain samples
- * @window: Window function to apply
- *
- * This calls the window function @window on the @timedata sample buffer.
- *
- */
-void
-gst_fft_f32_window (GstFFTF32 * self, gfloat * timedata, GstFFTWindow window)
-{
-  gint i, len;
-
-  g_return_if_fail (self);
-  g_return_if_fail (timedata);
-
-  len = self->len;
-
-  switch (window) {
-    case GST_FFT_WINDOW_RECTANGULAR:
-      /* do nothing */
-      break;
-    case GST_FFT_WINDOW_HAMMING:
-      for (i = 0; i < len; i++)
-        timedata[i] *= (0.53836 - 0.46164 * cos (2.0 * M_PI * i / len));
-      break;
-    case GST_FFT_WINDOW_HANN:
-      for (i = 0; i < len; i++)
-        timedata[i] *= (0.5 - 0.5 * cos (2.0 * M_PI * i / len));
-      break;
-    case GST_FFT_WINDOW_BARTLETT:
-      for (i = 0; i < len; i++)
-        timedata[i] *= (1.0 - fabs ((2.0 * i - len) / len));
-      break;
-    case GST_FFT_WINDOW_BLACKMAN:
-      for (i = 0; i < len; i++)
-        timedata[i] *= (0.42 - 0.5 * cos ((2.0 * i) / len) +
-            0.08 * cos ((4.0 * i) / len));
-      break;
-    default:
-      g_assert_not_reached ();
-      break;
-  }
-}